The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 13, 2018
Filed:
Feb. 18, 2014
Isuzu Motors Limited, Tokyo, JP;
ISUZU MOTORS LIMITED, Tokyo, JP;
Abstract
A particulate matter measuring device includes: a diesel particulate filter (DPF) in which upstream side and downstream side openings of multiple cells partitioned by porous partition walls are alternately plugged; a pair of first electrodes received in a pair of first electrode cells arranged diagonally with a central cell therebetween; a pair of second electrodes received in a pair of second electrode cells arranged diagonally with the central cell therebetween; a first connecting member for connecting the first electrodes to each other; a second connecting member for connecting the second electrodes to each other; and a unit that calculates an amount of particulate matter trapped in the DPF on the basis of capacitance between the electrodes. The four cells which are adjacent to each other around the partition walls of the central cell and sandwiched between the first electrode cells and the second electrode cells are used as measurement cells.